Join question

Dandello has asked for the wisdom of the Perl Monks concerning the following question:

I've been working with someone else's code and came across this to generate a mySQL command:

mysql_process( 0, 'do', qq~DELETE FROM `$db_table{$DBfile}[0]` WHERE `$db_table{$DBfile}[1]`="~ . join( '" OR `$db_table{$DBfile}[1]`="', @where ) . q~"~ );

Now, my gut tells me the section of code inside the join for the delimiter should be interpolated not a literal. But I'd like a second or third opinion.

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